Xuange x Beiluo. Twin-brother relationship, with Yueluo and the older brother and sister-in-law.
After returning to Tianlu City and taking up the royal sword, Beiluo came to understand the way of kingship over the next three years, and gained a new understanding of Xuange.
I cried when I saw it... I will always be saddened by Xuan Ge... But from another perspective, he probably has no regrets in dying for Tianlu City.
My wife wrote so well, I cried so much.